MCVD Modified Chemical Vapor Deposition Preform Tube Rotator from Japan
Modified Chemical Vapor Deposition (MCVD) machine rotates fused silica tubes while injecting gaseous precursors inside, depositing layers that collapse into preforms for single-mode optical fibers. Essential for low-attenuation fiber production. HTS 8475.21.00.00 designation for optical fiber making equipment.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit process flowcharts showing internal vapor deposition and collapse cycle
• Classify complete system; tube-only imports may go to 7002.32
• Monitor for ozone-depleting gases in older MCVD variants